<template>
  <!-- 商品分类导航 -->
  <div class="type-nav">
    <div class="container"  @mouseleave="isShow=false">
      <h2 class="all" @mouseenter="isShow=true">全部商品分类</h2>
      <nav class="nav">
        <a href="###">不知道</a>
        <a href="###">美妆馆</a>
        <a href="###">尚品汇超市</a>
        <a href="###">全球购</a>
        <a href="###">闪购</a>
        <a href="###">团购</a>
        <a href="###">有趣</a>
        <a href="###">秒杀</a>
      </nav>
      <div class="sort" v-if="$route.path === '/' || isShow  ">
        <div class="all-sort-list2" @click.stop="toSerch">
          <div class="item bo" v-for="value in datas" :key="value.categoryId">
            <h3>
              <!-- 一级菜单 -->
              <a :data-id="value.categoryId" :data-name="value.categoryName" data-level="1">{{value.categoryName}}</a>
            </h3>
            <div class="item-list clearfix">
              <div class="subitem">
                <dl class="fore" v-for="val2 in value.categoryChild " :key="val2.categoryId">
                  <dt>
                    <a :data-id="val2.categoryId" :data-name="val2.categoryName" data-level="2">{{val2.categoryName}}</a>
                  </dt>
                  <dd>
                    <em v-for="val3 in val2.categoryChild" :key="val3.categoryId">
                      <a :data-id="val3.categoryId" :data-name="val3.categoryName" data-level="3">{{val3.categoryName}}</a>
                    </em>
                    <!-- <em>
                      <a href="">文学</a>
                    </em>-->
                  </dd>
                </dl>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>

import { getBaseCategoryList} from "@/api/index"
export default {
  name: 'TypeNav',
  data(){
    return {
      isShow:false,
      datas:[]
    }
  },
  async mounted(){
        const data = await getBaseCategoryList()
        // console.log(data);
        // data.forEach(element => {
        //   this.categoryName.push(element.categoryName)
        // });
        this.datas =data
        //   
  },
  methods:{
    //利用事件委托，完成编程式导航，并传参
    toSerch(event){  
      const {name,id,level} = event.target.dataset
      // 没有自定义属性，说明点击的是空白区域，不跳转
      if (!name) {
        return;
      }
      this.$router.history.push({
        name:"Serch",
        query:{
          // keyword:this.$route.query,
          categoryName: name,
          [`category${level}Id`] :id
        },
        params:this.$route.params
      })
    }
  }
}
</script>

<style  lang="less" scoped>
.type-nav {
  border-bottom: 2px solid #e1251b;

  .container {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    position: relative;

    .all {
      width: 210px;
      height: 45px;
      background-color: #e1251b;
      line-height: 45px;
      text-align: center;
      color: #fff;
      font-size: 14px;
      font-weight: bold;
    }

    .nav {
      a {
        height: 45px;
        margin: 0 22px;
        line-height: 45px;
        font-size: 16px;
        color: #333;
      }
    }
  }
}
.sort {
  position: absolute;
  left: 0;
  top: 45px;
  width: 210px;
  // height: 461px;
  height: 480px;
  position: absolute;
  background: #fafafa;
  z-index: 9; 
}
// .all-sort-list2 {
// }
.item {
  h3 {
    line-height: 30px;
    font-size: 14px;
    font-weight: 400;
    overflow: hidden;
    padding: 0 20px;
    margin: 0;

    a {
      color: #333;
    }
  }

  .item-list {
    display: none;
    position: absolute;
    width: 734px;
    min-height: 460px;
    _height: 200px;
    background: #f7f7f7;
    left: 210px;
    border: 1px solid #ddd;
    top: 0;
    z-index: 9999 !important;

    .subitem {
      float: left;
      // width: 650px;
      padding: 0 4px 0 8px;

      dl {
        border-top: 1px solid #eee;
        padding: 6px 0;
        overflow: hidden;
        zoom: 1;

        &.fore {
          border-top: 0;
        }

        dt {
          float: left;
          width: 54px;
          line-height: 22px;
          text-align: right;
          padding: 3px 6px 0 0;
          font-weight: 700;
        }

        dd {
          float: left;
          width: 650px;
          padding: 3px 0 0;
          overflow: hidden;

          em {
            float: left;
            height: 14px;
            line-height: 14px;
            padding: 0 8px;
            margin-top: 5px;
            border-left: 1px solid #ccc;
          }
        }
      }
    }
  }

  &:hover {
    .item-list {
      display: block;
    }
  }
}
</style>
